(19)

(11)

EP 0 616 669 A1

(12)

(43) Date of publication: 28.09.1994 Bulletin 1994/39 (21) Application number: 93900149.0 (22) Date of filing: 11.12.1992

(51) International Patent Classification (IPC):  F16J 15/ 30( . ) F16K 41/ 04( . ) (86) International application number: PCT/US1992/010748 (87) International publication number: WO 1993/012364 (24.06.1993 Gazette 1993/15)

(84) Designated Contracting States: AT BE CH DE ES FR GB IT LI NL SE (30) Priority: 12.12.1991 US 19910806593 (71) Applicant: MARK CONTROLS CORPORATION Long Beach, CA 90807 (US)	(72) Inventors: SALESKY, William, J. Irvine, CA 92714 (US) LACQUEMENT, Harold, A. Bellflower, CA 90706 (US) BRIDGES, John, E. Phillips Ranch, CA 91766 (US) (74) Representative: Ninnemann, Detlef, Dipl.-Ing., et al  Patentanwälte Maikowski & Ninnemann, Xantener Strasse 10 D-10707 Berlin D-10707 Berlin (DE)